What does the error message "SyntaxError: Unexpected end of JSON input" mean when using a website deployed on either Netlify or Render?

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The error message "SyntaxError: Unexpected end of JSON input" typically means that the response you received from a server is not valid JSON because it ended unexpectedly. This can happen when the server returns an empty or incomplete response. Check to ensure that you are correctly sending and receiving data between the server and client-side code of the website.